Filed 2 days ago and now cant file today a new t4 CRA Result Code: NETFILE submission was already confirmed. Not letting this second submission pass through. Do a REFILE.

So I'm thinking since I filed a t4 2 days ago and sent it with netfile it for some reason wont let me do it for the t4 i received today

Getting started

If you have already filed the return using NETFILE, then you won't be able to make changes to your return unless you are doing a REFILE. This TurboTax FAQ has instructions on how to use REFILE: I've filed my tax return. Can I still make changes?